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Disposal of Subsidiaries - Additional Information (Detail) - TWD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2021
Disposal of Subsidiaries [Line Items]
Total consideration	$ 966,000
Shenzhen Hiwin System Limited [Member]
Disposal of Subsidiaries [Line Items]
Percentage of Ownership (%)	100.00%
GAPT Holdings limited [Member]
Disposal of Subsidiaries [Line Items]
Percentage of Ownership (%)		100.00%

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The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]]

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The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

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